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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/frv/Kconfig.debug
downloadvexpress-lsk-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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+menu "Kernel hacking"
+
+source "lib/Kconfig.debug"
+
+config EARLY_PRINTK
+ bool "Early printk"
+ depends on EMBEDDED && DEBUG_KERNEL
+ default n
+ help
+ Write kernel log output directly into the VGA buffer or to a serial
+ port.
+
+ This is useful for kernel debugging when your machine crashes very
+ early before the console code is initialized. For normal operation
+ it is not recommended because it looks ugly and doesn't cooperate
+ with klogd/syslogd or the X server. You should normally N here,
+ unless you want to debug such a crash.
+
+config DEBUG_STACKOVERFLOW
+ bool "Check for stack overflows"
+ depends on DEBUG_KERNEL
+
+config DEBUG_PAGEALLOC
+ bool "Page alloc debugging"
+ depends on DEBUG_KERNEL
+ help
+ Unmap pages from the kernel linear mapping after free_pages().
+ This results in a large slowdown, but helps to find certain types
+ of memory corruptions.
+
+config GDBSTUB
+ bool "Remote GDB kernel debugging"
+ depends on DEBUG_KERNEL
+ select DEBUG_INFO
+ select FRAME_POINTER
+ help
+ If you say Y here, it will be possible to remotely debug the kernel
+ using gdb. This enlarges your kernel ELF image disk size by several
+ megabytes and requires a machine with more than 16 MB, better 32 MB
+ RAM to avoid excessive linking time. This is only useful for kernel
+ hackers. If unsure, say N.
+
+choice
+ prompt "GDB stub port"
+ default GDBSTUB_UART1
+ depends on GDBSTUB
+ help
+ Select the on-CPU port used for GDB-stub
+
+config GDBSTUB_UART0
+ bool "/dev/ttyS0"
+
+config GDBSTUB_UART1
+ bool "/dev/ttyS1"
+
+endchoice
+
+config GDBSTUB_IMMEDIATE
+ bool "Break into GDB stub immediately"
+ depends on GDBSTUB
+ help
+ If you say Y here, GDB stub will break into the program as soon as
+ possible, leaving the program counter at the beginning of
+ start_kernel() in init/main.c.
+
+config GDB_CONSOLE
+ bool "Console output to GDB"
+ depends on GDBSTUB
+ help
+ If you are using GDB for remote debugging over a serial port and
+ would like kernel messages to be formatted into GDB $O packets so
+ that GDB prints them as program output, say 'Y'.
+
+endmenu